Intake Manifold Runner Position Sensor Circuit Bank 2
The P2019 code indicates a problem with the intake manifold runner position sensor or its circuit on Bank 2. This sensor monitors the position of the intake manifold runner control (IMRC) flaps, which adjust airflow for optimal performance. A fault can cause the engine control module (ECM) to detect an incorrect voltage signal, leading to reduced engine power and efficiency.
1. Most Common Causes
- Faulty or worn intake manifold runner position sensor
- Sensor wiring shorted to ground, shorted to voltage, or open circuit
- Corroded, loose, or moisture-contaminated sensor connector
- Intake manifold runner actuator mechanically stuck or failed
- Internal ECM/PCM failure (less common)
- Blown actuator circuit fuse
2. Symptoms You Will Notice
- Check Engine Light illuminated
- Reduced engine power and acceleration
- Poor fuel economy
- Rough idle or hesitation
3. Step-by-Step Diagnosis
Step 1: Use an OBD2 scanner to confirm P2019 and check for other codes.
Step 2: Visually inspect the sensor connector and wiring for damage or corrosion.
Step 3: Test the sensor voltage and resistance with a multimeter against manufacturer specs.
Step 4: Check IMRC flap operation by manually moving them (if accessible) for binding.
Step 5: If wiring and sensor are good, test the actuator/solenoid and replace if faulty.
4. Frequently Asked Questions
Is it safe to drive with this code?▼
You can drive short distances, but reduced power and fuel economy may occur. Prolonged driving could cause further issues or damage to the intake system.
How much does it cost to fix?▼
Repair costs typically range from $50 to $150 for sensor replacement, but can be higher if wiring repairs or actuator replacement is needed.
5. Commonly Affected Makes
This is a generic OBD2 code, potentially applicable to any manufacturer using this diagnostic standard.